Veins Browning, turning into Major Devastation. Please Help.

hey rhizome

Thanks so much for your post -- I followed your googling suggestions and I learned a great deal that I didn't know before. There are so many details to be learned about caring for this amazing plant.

Even though Coco is only 10% - 20% of my soil mixture, let's say that coco's properties are indeed causing my problems, e.g. grabbing or releasing Calcium as the pH varies. What can I do to remedy things for the plants that have just started flowering, or that are half-way through flowering? Do you think I should switch to a coco-specific nute program only, even though coco is such a small % of what my plants are sitting in?

Right now I have plants that are one month, 5 weeks, and 7 weeks from harvest.

thanks so much,
DeepThought.